Ah. I think there might be a bit of a snag here. If you are arriving in HKG I don't believe you have lounge access with SQ. That's only a benefit at Singapore airport proper where you can access lounges inbound on presentation of your boarding pass. The same benefit doesn't extend to other ports AFAIK.sorry, shou;ld have been a bit clearer, going to HKG with singapore airlines, and then leaving HKG on emirates
closing time for kris lounge according to google is 11:30pm
and openining time for Emirates lounge is 5am,
im sure I could find 5.5 hours of soemthing to do!